Icon class icon_class far fa-sticky-note icon_class_computed far fa-sticky-note Note kind ASSERTION Specification keywords SysPhS-1.1 SysMLv1.x keywords constraint parameter ConstraintBlock Keywords SysPhS dimensional analysis This conclusion depends on: Webel vs SysPhS-1.1: Annex A.5: Humidifier: Dimensional analysis of RelativeHumidityCalculationConstraint implies constraint parameter 'change' in {der(x)=((press/satVap)-change)/c2} is a unitless relative humidity, given that 'c2' is a Time. Relates to BDD & PD: HumidityBalance Related notes [ASSERTION] Webel vs SysPhS-1.1: Annex A.5: Humidifier: Dimensional analysis of RelativeHumidityCalculationConstraint implies constraint parameter 'change' in {der(x)=((press/satVap)-change)/c2} is a unitless relative humidity, given that 'c2' is a Time. [ASSERTION] Webel vs SysPhS-1.1: Annex A.5: Humidifier: It is assumed that "energy" is a rate (equivalent to a power). [ASSERTION] Webel vs SysPhS-1.1: Annex A.5: Humidifier: It is assumed that "radiation" is a rate (equivalent to a power). [ASSERTION]{STRONG} Webel vs SysPhS-1.1: Annex A.5: Humidifier: It is assumed that "vapor" is a volume rate corresponding to the rate of consumption OF HEATED LIQUID WATER (from a tank) used to create the vapor. Related notes (backlinks) [ASSERTION] Webel vs SysPhS-1.1: Annex A.5: Humidifier: In the Webel version it will be tentatively assumed we are in fact dealing with a large humidified space like an office building NOT a single "humidified room" - despite the block name HumidifiedRoom in the spec [ASSERTION] Webel vs SysPhS-1.1: Annex A.5: Humidifier: It is assumed that 'HumidityBalance::volume = 25,000' and 'VaporPressureCalculation::volume = 25,000' are the same fixed SpaceVolume in cubic metres (m^3). [ISSUE] Webel vs SysPhS-1.1: Annex A.5: Humidifier: Dimensional analysis of VaporPressureCalculationConstraint implies each 1 mL of water is equated with EXACTLY 1 g of produced vapor. [ISSUE] Webel vs SysPhS-1.1: Annex A.5: Humidifier: Dimensional analysis of VaporPressureCalculationConstraint implies the output is a pressure rate, which makes no sense as consumed by RelativeHumidityCalculation and is inconsistent with the rest of the system. Related snippets (extracts) Visit also SysPhS-1.1 Visit also (backlinks) Flags
